IGCSE O Level Physics Certification MCQs – Practice Test 3 (Chapter 1)

Electromagnetic Waves Quiz with Answers PDF Download – Test 3

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Free Electromagnetic Waves Learning App Download (Android & iOS): Faster among the waves and rays is; MCQ with answers: both have no speed, waves, rays, and both have equal speed. Study Energy and Units Quiz Questions, download Google Book (Free Chapter) to join online study.

Electromagnetic Waves Exam Questions and Answers PDF Download: Test 3

MCQ 11: When the medium of electromagnetic waves changes from air to water, their speed:

increases
remains same
decreases
may increase or decrease

MCQ 12: Faster among the waves and rays is:

waves
both have no speed
rays
both have equal speed

MCQ 13: Electromagnetic waves obey the law of:

refraction only
reflection and refraction both
reflection only
momentum

MCQ 14: Speed of electromagnetic waves in vacuum is:

30 × 10⁸ m s^-1
4 × 10⁸ m s^-1
3.0 × 10⁸ m s^-1
6.0 × 10⁸ m s^-1

MCQ 15: As the speed decreases if we change the medium of electromagnetic waves from air to water, the frequency:

also decreases
also increases
remains same
may increase or decrease

IGCSE O Level Physics Quiz App & e-Book – Electromagnetic Waves Certification Guide

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